Pi is the ratio of the circumference of a circle to its diameter, or approximately 3.14. What is Pi Day? Pi Day occurs March 14, because the date is written as 3/14 in the United States. If you're a ...
The Raspberry Pi foundation has spent the last year filling out the Pi 5 lineup—in August, we got a cheaper $50 version with 2GB of RAM, and in December, we got the Pi 500, a Pi-inside-a-keyboard ...